Knitting-machine.



s. T. sTnEs.

KNITTING MACHINE. APPLICATION .FILED MAY 10; 1915.

1,159,429.. Patented NW9, 1915. I

ym/[ 41M500 V anve wtqa %c Ma in t as re,

SAMUEL/'1. STI'IES, or nooxronn, ILLINOIS, essienon TO Bunsen MANUFACIM nine COMPANY, OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS KNITTING-MACHINE.

seria ze.

i b all whom it may concern Be it known that l, SAMUEL T. STITES, a citizen of the United States, residing at Rockford, in the county of lVinnebago and State of Illinois, have invented certain new and useful Improvements in KnittingMaohines, of which. the following is a specification.

This-invention relates in general to knitting machines of the parallel row type andh'as more'iparticular reference to the means for adjusting and holding in operative position ther'eciprocable cam-bars which project and retract th'e presser-hooks.

In this type 01f knitting machine, it is necessary mainly because of the wearing of the contacting surfaces between the cambars' and resser-hooks, to frequently adjust the cam-bars so that presser-hooks will be acci'lrately and uniformly projected to function properly in the knitting operation.

" The adjusting means heretofore employed for effecting adjustment of the cam-bars have-been so constructed that great difliculty is experienced in securing and maintaining the tine adjustments necessary to keep-the :j'iresser-hooks working properly. Since unreliable operation of the presser-hooks is ini-mical to perfect knitting, it is obviously desirable to utilize means whereby the presser-hooks may be easily and accurately adjusted so as to control the extent of projection of the hooks to a fine degree of precision. j

Oneof the primary objects of my invention, therefore, is to provide improved means for adjusting the cam-bars which project and retract the presser-hooks, by which fine and accurate adjustments and alterations of the presser-hooks, may bereadily and easily secured and maintained to thereby promote and insure the efliciency of the knitting machine.

Another obj e'ct of my invention is to provide improved means for adjusting the cambars which will yieldingly and continuously hold the samein operation.

Other objects and attendant advantages of the, invention will be apparent as the same becomes better understood by reference to' the following description, when consid- Specification of Letters Patent.

Application filed May 10,1915. Serial No. 27,204. I

Patented Nov. leis.

ered in connection with the'accompanying drawings; whet-cine Figure 1 is ,an end view of a parallel row knitting machine showing my improvements embodied therein; Fig; 2 isa vertical sectional view through oneof the'ineedle beds, illustrating the connection of a cambar with a pressenhook; Fig. 3 is a side view 01: the adjustable guides that cooperate with one cam-bar, the endsof the needle bed being designated by dotted lines; and Figs. 4.: to 7 inclusive, show in perspective in disassooiated re ation the principal parts of the adjustable guide means.

My improvements are applicable to knitting machines of the general typeshown'in Patent No. 616,600, granted Dec 2?, 1898, toll. V. Burson, and onthe drawing'herein, I have illustrated merely in outline an end view of a knitting machine of this type, since the relation thereto and the modepof operation of my improvements will'be. readily apparent to one skilledin the art.

The knitting machine parts shown, comprise the needle beds 5, theneedle-operating cam-slides 6, the presser-hook supportingbeds or segments 7-,vthe Presser-hooks 8, the cam-bars 9 which project and retract the presserhooks, the bars 11*servingto hold the presser-hooks down in place, and the bars 12 cooperating with and forming Ways for the cam-bars 9 andcam slides 6. The cam-bars 9 are providedwiththe usual cam grooves 13 which receive the radial lugs'of the presser-hooks so that upon lengthwise reciprocation of the cam-bars, the presserhooks are projected-andjretracted as is well understood in this artfi- The cam-bars 9, while guided between the-membersfand 12, are capable of movement laterally between said members so as to change the extent of projection of the presser-h-ooks, andare adjustably held against lateral movement and maintained in operative position adjustable guide means mounted on each end ofthe needle beds. 7 r Since the means for guiding each cam-bar being held against longitudinal movement,

is movable on pins18'toward and away from v knurled face and the Slotted end of the screw ledge 15 engages designated in general by reference character 14;, shdably associated with one end of a needle bed and having its upper end turned outwardly at right angles to the end face of .the needle bed forming a ledge 15, is so positioned with respect to a cam-bar 9 that the face 16 thereof rests upon the top face of the ledge 15 and guided thereby. Means for adjustabiy securing said plate 14 to the .needle bed in suchmanner' that the plate may be adjusted to move the cam-bar sidewise or laterally between the members 7 and 12, are'constructed as follows. A second plate designated in general by reference character 17, positioned on'the outer face of the plate 14 is connected to the needle bed by means of pins 18 fixed to the bed and eXtendingQ-outwardly therefrom through elongated openings 19 in the plate 1% and into closelyfitt-ing apertures 21 in plate 17 The apertures 19 extending ina plane at right angles to the ledge 15', permit the plate 14 to be moved in the plane of said apertures, on the pins 18. ,The plate 17 while the needle bed and maybe clamped,- together with the plate 14, rigidly to .the bed 30 by means of 'a setscrew 22 which passes through "an aperture 23;.in plate 17, an elongated aperture 24 in plate 14 and is threaded into the needle bed. An adjusting member 25, threaded at one end into a tapped osite end against longitudinal movement y engagement of an annular groove 27 formed on. the head of the screw 25 with the bifurcated end of a-lateral-extension 26 formed on the plate 17, as shown. The

' member 25 afford adequate'provision wherebv said screw member may be easily turned.-

As will be seen in Fig. 2, the guidemeans 4 v with meansresilientlyholding the cam-bar .9 upon theledge 15. This retalning means at one end only of the machine is provided comprises an L-shapedplate 28 embracing 56 two adjoining sides 81 and 32 of the cama slot,34= in the bar, provided with axtongue passing through fixedly secured thereto a guide member 35 which has an upturned end 36 shdably engaging the outer face of the plate 17. An I about the tongue 33, and interposed between the ledge 1 15 and the guide'member 35'exerts its tenjsionon the retainingplate to expansion spring 37 coiled constantly urge the cam-bar against the ledge- An auxiliary guide 38 secured to the top of the the back of the retaining member to hold'it against displacement.

" From the foregoing, it willbea'pparent that by loosening the. set screw 22 and then 66 t ing, the screw member 25, which is held "opening 20 in the-ledge 15, is held atits opledge 15, the tongue having ,tionary element."

againstlongitudinal movement by the plate 17, a finely accurate lateral adjustment of the cam-bar may be made \Vhen the desired adjustment has thus been secured, the set screw may be tightened to clamp the plates fixedly to the'needle bed. It will be understood, of course, that by lateral adjust-- ment ofthe cam-bar, the extent of projection'of the presser-hooksisjchanged and by the use of improved guiding and adjusting means, the cam-bars may be readily and ac-' curately adjusted and then set in adjusted position (by tightening the set screw) withand retracting the same, of a movable de-' vice-upon which the cam-bar slides, a screw adjustment connecting said device with a stationary element of the machine to positively adjust said' device with respect to.

.i said stationary element, whereby to adjust through'the cam-bar the extent of projection of said presser hooks, and means mounted on said movable device for yieldingly holding the cam-bar in slidableengagement with said device.

2. In a knitting mach1ne,'the combination of a frame, a member mounted to recipro- *cate'with respect thereto, a plate slidably associated with the frame and provided with means engaging the said slidable member for guiding the same and provided also. .with elongated apertures therethrough, a second plate associated. with the first named plate and provided with meansextendin g through said apertures and secured to the frame so that the first named platemay, be moved with respect thereto, .said meansfins eluding a set screw whereby the two' j p es. 1 I may be secured rigidly to the frame, a'nda screw connection between the plates constructed ,to permit adjustment of the first named plat e,..an'd consequently the recipro- I cable bar, with respect to the frame.

3. The combination of a stationary element, a member slidable with respect there to, a plate movable with respect to said stationary element and having a laterally extending portion serving as a guide upon which said member is slidable, means mounted on said lateral portion. and constructed to resiliently hold the slidable memberin engagement therewith, a second plate associated with the first named plate and secured to the stationary element, a screw connection between the stationary plate and the lateral portion of the movable plate wherebythelatter, and consequently the slidable member, may be adjusted with respect to the stationary element, and means for clamping said plates fixedly to the stamsaeaa g 4. In a knitting machine,- the combination means for adjusting the device "with respect With the presser-hooks and the reciprocable to said stationary element to changeth'e ex- 10 cam-bar cooperating therewith for project-o tent of projection of thepresser-hooks and ing and retracting the same, of means upon for fixedly securing the device in adjusted ,1 which the cam-bar slides for 1101ding.the position, and provided also With means same in operative position, including a de yieldingly urging the cam-bar to vice movably mounted on a stationary element with the first named means. ment of the machine and provided With v SAMUEL T. STITES.

engage- 

